"-itis" diseases are basically due to AA overload, which often leads
to chronic inflammation.  Always look at the wording very carefully.
The word "contributes" is used here.  Since bacteria and viruses are
all over the place, this claim is certainly possible, but should be
followed up with "so what?"  If you try to kill bacteria or inhibit
viruses using the modern "miracle drugs," you are poisoning yourself
as well.  The key is to avoid stressors, which also stresses bacteria
and activates viruses, thus prompting an inflammatory response, which
does damage.

Now in this case, there is really no mystery.  Scientists studying
farm issues have known for decades that a PUFA-rich diet fattens up
animals.  A diet rich in coconut oil keeps the animals lean.  This
issue is called feeding efficiency.  Humans do not want to be fat, and
so a diet in which coconut oil is the only fat source used will not
result in obesity, unless the person is doing something very dangerous
that stresses cells in similar ways.  I doubt there is any such thing,
however, for the overwhelming majority of people, except, of course,
consuming a huge amount of calories relative to what is actually
required.